diff --git a/src/Common/Device.cpp b/src/Common/Device.cpp
index 5e7073dc..189c0757 100644
--- a/src/Common/Device.cpp
+++ b/src/Common/Device.cpp
@@ -87,7 +87,7 @@ void DevChannel::inputH264(const char *data, int len, uint32_t dts, uint32_t pts
     //由于rtmp/hls/mp4需要缓存时间戳相同的帧，
     //所以使用FrameNoCacheAble类型的帧反而会在转换成FrameCacheAble时多次内存拷贝
     //在此处只拷贝一次，性能开销更低
-    H264Frame::Ptr frame = std::make_shared<H264Frame>();
+    auto frame = FrameImp::create<H264Frame>();
     frame->_dts = dts;
     frame->_pts = pts;
     frame->_buffer.assign(data, len);
@@ -106,7 +106,7 @@ void DevChannel::inputH265(const char *data, int len, uint32_t dts, uint32_t pts
     //由于rtmp/hls/mp4需要缓存时间戳相同的帧，
     //所以使用FrameNoCacheAble类型的帧反而会在转换成FrameCacheAble时多次内存拷贝
     //在此处只拷贝一次，性能开销更低
-    H265Frame::Ptr frame = std::make_shared<H265Frame>();
+    auto frame = FrameImp::create<H265Frame>();
     frame->_dts = dts;
     frame->_pts = pts;
     frame->_buffer.assign(data, len);
diff --git a/src/Extension/AAC.cpp b/src/Extension/AAC.cpp
index 2f1691ec..d29ccc59 100644
--- a/src/Extension/AAC.cpp
+++ b/src/Extension/AAC.cpp
@@ -182,6 +182,136 @@ bool parseAacConfig(const string &config, int &samplerate, int &channels){
 #endif
 }
 
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * aac类型SDP
+ */
+class AACSdp : public Sdp {
+public:
+    /**
+     * 构造函数
+     * @param aac_cfg aac两个字节的配置描述
+     * @param sample_rate 音频采样率
+     * @param payload_type rtp payload type 默认98
+     * @param bitrate 比特率
+     */
+    AACSdp(const string &aac_cfg,
+           int sample_rate,
+           int channels,
+           int bitrate = 128,
+           int payload_type = 98) : Sdp(sample_rate,payload_type){
+        _printer << "m=audio 0 RTP/AVP " << payload_type << "\r\n";
+        if (bitrate) {
+            _printer << "b=AS:" << bitrate << "\r\n";
+        }
+        _printer << "a=rtpmap:" << payload_type << " MPEG4-GENERIC/" << sample_rate << "/" << channels << "\r\n";
+
+        string configStr;
+        char buf[4] = {0};
+        for(auto &ch : aac_cfg){
+            snprintf(buf, sizeof(buf), "%02X", (uint8_t)ch);
+            configStr.append(buf);
+        }
+        _printer << "a=fmtp:" << payload_type << " streamtype=5;profile-level-id=1;mode=AAC-hbr;"
+                 << "sizelength=13;indexlength=3;indexdeltalength=3;config=" << configStr << "\r\n";
+        _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
+    }
+
+    string getSdp() const override {
+        return _printer;
+    }
+
+    CodecId getCodecId() const override {
+        return CodecAAC;
+    }
+private:
+    _StrPrinter _printer;
+};
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+AACTrack::AACTrack(const string &aac_cfg) {
+    if (aac_cfg.size() < 2) {
+        throw std::invalid_argument("adts配置必须最少2个字节");
+    }
+    _cfg = aac_cfg;
+    onReady();
+}
+
+const string &AACTrack::getAacCfg() const {
+    return _cfg;
+}
+
+CodecId AACTrack::getCodecId() const {
+    return CodecAAC;
+}
+
+bool AACTrack::ready() {
+    return !_cfg.empty();
+}
+
+int AACTrack::getAudioSampleRate() const {
+    return _sampleRate;
+}
+
+int AACTrack::getAudioSampleBit() const {
+    return _sampleBit;
+}
+
+int AACTrack::getAudioChannel() const {
+    return _channel;
+}
+
+void AACTrack::inputFrame(const Frame::Ptr &frame) {
+    if (frame->prefixSize()) {
+        //有adts头，尝试分帧
+        auto ptr = frame->data();
+        auto end = frame->data() + frame->size();
+        while (ptr < end) {
+            auto frame_len = getAacFrameLength((uint8_t *) ptr, end - ptr);
+            if (frame_len < ADTS_HEADER_LEN) {
+                break;
+            }
+            auto sub_frame = std::make_shared<FrameInternal<FrameFromPtr> >(frame, (char *) ptr, frame_len, ADTS_HEADER_LEN);
+            ptr += frame_len;
+            sub_frame->setCodecId(CodecAAC);
+            inputFrame_l(sub_frame);
+        }
+    } else {
+        inputFrame_l(frame);
+    }
+}
+
+void AACTrack::inputFrame_l(const Frame::Ptr &frame) {
+    if (_cfg.empty()) {
+        //未获取到aac_cfg信息
+        if (frame->prefixSize()) {
+            //根据7个字节的adts头生成aac config
+            _cfg = makeAacConfig((uint8_t *) (frame->data()), frame->prefixSize());
+            onReady();
+        } else {
+            WarnL << "无法获取adts头!";
+        }
+    }
+
+    if (frame->size() > frame->prefixSize()) {
+        //除adts头外，有实际负载
+        AudioTrack::inputFrame(frame);
+    }
+}
+
+void AACTrack::onReady() {
+    if (_cfg.size() < 2) {
+        return;
+    }
+    parseAacConfig(_cfg, _sampleRate, _channel);
+}
+
+Track::Ptr AACTrack::clone() {
+    return std::make_shared<std::remove_reference<decltype(*this)>::type>(*this);
+}
+
 Sdp::Ptr AACTrack::getSdp() {
     if(!ready()){
         WarnL << getCodecName() << " Track未准备好";
diff --git a/src/Extension/AAC.h b/src/Extension/AAC.h
index 61ff4b66..609b2f4f 100644
--- a/src/Extension/AAC.h
+++ b/src/Extension/AAC.h
@@ -27,184 +27,43 @@ bool parseAacConfig(const string &config, int &samplerate, int &channels);
  */
 class AACTrack : public AudioTrack{
 public:
-    typedef std::shared_ptr<AACTrack> Ptr;
+    using Ptr = std::shared_ptr<AACTrack>;
 
     /**
      * 延后获取adts头信息
      * 在随后的inputFrame中获取adts头信息
      */
-    AACTrack(){}
+    AACTrack() = default;
 
     /**
      * 构造aac类型的媒体
      * @param aac_cfg aac配置信息
      */
-    AACTrack(const string &aac_cfg){
-        setAacCfg(aac_cfg);
-    }
-
-    /**
-     * 设置aac 配置信息
-     */
-    void setAacCfg(const string &aac_cfg){
-        if (aac_cfg.size() < 2) {
-            throw std::invalid_argument("adts配置必须最少2个字节");
-        }
-        _cfg = aac_cfg;
-        onReady();
-    }
+    AACTrack(const string &aac_cfg);
 
     /**
      * 获取aac 配置信息
      */
-    const string &getAacCfg() const{
-        return _cfg;
-    }
+    const string &getAacCfg() const;
 
-    /**
-     * 返回编码类型
-     */
-    CodecId getCodecId() const override{
-        return CodecAAC;
-    }
-
-    /**
-     * 在获取aac_cfg前是无效的Track
-     */
-    bool ready() override {
-        return !_cfg.empty();
-    }
-
-    /**
-     * 返回音频采样率
-     */
-    int getAudioSampleRate() const override{
-        return _sampleRate;
-    }
-
-    /**
-     * 返回音频采样位数，一般为16或8
-     */
-    int getAudioSampleBit() const override{
-        return _sampleBit;
-    }
-
-    /**
-     * 返回音频通道数
-     */
-    int getAudioChannel() const override{
-        return _channel;
-    }
-
-    /**
-     * 输入数据帧,并获取aac_cfg
-     * @param frame 数据帧
-     */
-    void inputFrame(const Frame::Ptr &frame) override{
-        if (frame->prefixSize()) {
-            //有adts头，尝试分帧
-            auto ptr = frame->data();
-            auto end = frame->data() + frame->size();
-            while (ptr < end) {
-                auto frame_len = getAacFrameLength((uint8_t *) ptr, end - ptr);
-                if (frame_len < ADTS_HEADER_LEN) {
-                    break;
-                }
-
-                auto sub_frame = std::make_shared<FrameInternal<FrameFromPtr> >(frame, (char *) ptr, frame_len, ADTS_HEADER_LEN);
-                ptr += frame_len;
-                sub_frame->setCodecId(CodecAAC);
-                inputFrame_l(sub_frame);
-            }
-        } else {
-            inputFrame_l(frame);
-        }
-    }
+    bool ready() override;
+    CodecId getCodecId() const override;
+    int getAudioChannel() const override;
+    int getAudioSampleRate() const override;
+    int getAudioSampleBit() const override;
+    void inputFrame(const Frame::Ptr &frame) override;
 
 private:
-    void inputFrame_l(const Frame::Ptr &frame) {
-        if (_cfg.empty()) {
-            //未获取到aac_cfg信息
-            if (frame->prefixSize()) {
-                //根据7个字节的adts头生成aac config
-                _cfg = makeAacConfig((uint8_t *) (frame->data()), frame->prefixSize());
-                onReady();
-            } else {
-                WarnL << "无法获取adts头!";
-            }
-        }
+    void onReady();
+    Sdp::Ptr getSdp() override;
+    Track::Ptr clone() override;
+    void inputFrame_l(const Frame::Ptr &frame);
 
-        if (frame->size() > frame->prefixSize()) {
-            //除adts头外，有实际负载
-            AudioTrack::inputFrame(frame);
-        }
-    }
-    /**
-     * 解析2个字节的aac配置
-     */
-    void onReady(){
-        if (_cfg.size() < 2) {
-            return;
-        }
-        parseAacConfig(_cfg, _sampleRate, _channel);
-    }
-
-    Track::Ptr clone() override {
-        return std::make_shared<std::remove_reference<decltype(*this)>::type >(*this);
-    }
-
-    //生成sdp
-    Sdp::Ptr getSdp() override ;
 private:
     string _cfg;
+    int _channel = 0;
     int _sampleRate = 0;
     int _sampleBit = 16;
-    int _channel = 0;
-};
-
-/**
- * aac类型SDP
- */
-class AACSdp : public Sdp {
-public:
-    /**
-     * 构造函数
-     * @param aac_cfg aac两个字节的配置描述
-     * @param sample_rate 音频采样率
-     * @param payload_type rtp payload type 默认98
-     * @param bitrate 比特率
-     */
-    AACSdp(const string &aac_cfg,
-           int sample_rate,
-           int channels,
-           int bitrate = 128,
-           int payload_type = 98) : Sdp(sample_rate,payload_type){
-        _printer << "m=audio 0 RTP/AVP " << payload_type << "\r\n";
-        if (bitrate) {
-            _printer << "b=AS:" << bitrate << "\r\n";
-        }
-        _printer << "a=rtpmap:" << payload_type << " MPEG4-GENERIC/" << sample_rate << "/" << channels << "\r\n";
-
-        string configStr;
-        char buf[4] = {0};
-        for(auto &ch : aac_cfg){
-            snprintf(buf, sizeof(buf), "%02X", (uint8_t)ch);
-            configStr.append(buf);
-        }
-        _printer << "a=fmtp:" << payload_type << " streamtype=5;profile-level-id=1;mode=AAC-hbr;"
-                 << "sizelength=13;indexlength=3;indexdeltalength=3;config=" << configStr << "\r\n";
-        _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
-    }
-
-    string getSdp() const override {
-        return _printer;
-    }
-
-    CodecId getCodecId() const override {
-        return CodecAAC;
-    }
-private:
-    _StrPrinter _printer;
 };
 
 }//namespace mediakit
diff --git a/src/Extension/AACRtmp.cpp b/src/Extension/AACRtmp.cpp
index e9bb8699..14ed202e 100644
--- a/src/Extension/AACRtmp.cpp
+++ b/src/Extension/AACRtmp.cpp
@@ -42,7 +42,7 @@ void AACRtmpDecoder::inputRtmp(const RtmpPacket::Ptr &pkt) {
 }
 
 void AACRtmpDecoder::onGetAAC(const char* data, size_t len, uint32_t stamp) {
-    auto frame = ResourcePoolHelper<FrameImp>::obtainObj();
+    auto frame = FrameImp::create();
     frame->_codec_id = CodecAAC;
 
     //生成adts头
diff --git a/src/Extension/AACRtmp.h b/src/Extension/AACRtmp.h
index cc574bed..9b017ad2 100644
--- a/src/Extension/AACRtmp.h
+++ b/src/Extension/AACRtmp.h
@@ -19,7 +19,7 @@ namespace mediakit{
 /**
  * aac Rtmp转adts类
  */
-class AACRtmpDecoder : public RtmpCodec , public ResourcePoolHelper<FrameImp> {
+class AACRtmpDecoder : public RtmpCodec{
 public:
     typedef std::shared_ptr<AACRtmpDecoder> Ptr;
 
diff --git a/src/Extension/AACRtp.cpp b/src/Extension/AACRtp.cpp
index 002ba8c2..890c41ac 100644
--- a/src/Extension/AACRtp.cpp
+++ b/src/Extension/AACRtp.cpp
@@ -74,9 +74,7 @@ AACRtpDecoder::AACRtpDecoder() {
 
 void AACRtpDecoder::obtainFrame() {
     //从缓存池重新申请对象，防止覆盖已经写入环形缓存的对象
-    _frame = ResourcePoolHelper<FrameImp>::obtainObj();
-    _frame->_prefix_size = 0;
-    _frame->_buffer.clear();
+    _frame = FrameImp::create();
     _frame->_codec_id = CodecAAC;
 }
 
diff --git a/src/Extension/AACRtp.h b/src/Extension/AACRtp.h
index da56f89e..dcb769f4 100644
--- a/src/Extension/AACRtp.h
+++ b/src/Extension/AACRtp.h
@@ -17,7 +17,7 @@ namespace mediakit{
 /**
  * aac rtp转adts类
  */
-class AACRtpDecoder : public RtpCodec , public ResourcePoolHelper<FrameImp> {
+class AACRtpDecoder : public RtpCodec {
 public:
     typedef std::shared_ptr<AACRtpDecoder> Ptr;
 
diff --git a/src/Extension/CommonRtmp.cpp b/src/Extension/CommonRtmp.cpp
index 2a881854..c15f6a1d 100644
--- a/src/Extension/CommonRtmp.cpp
+++ b/src/Extension/CommonRtmp.cpp
@@ -22,11 +22,8 @@ CodecId CommonRtmpDecoder::getCodecId() const {
 }
 
 void CommonRtmpDecoder::obtainFrame() {
-    //从缓存池重新申请对象，防止覆盖已经写入环形缓存的对象
-    _frame = ResourcePoolHelper<FrameImp>::obtainObj();
-    _frame->_buffer.clear();
+    _frame = FrameImp::create();
     _frame->_codec_id = _codec;
-    _frame->_prefix_size = 0;
 }
 
 void CommonRtmpDecoder::inputRtmp(const RtmpPacket::Ptr &rtmp) {
diff --git a/src/Extension/CommonRtmp.h b/src/Extension/CommonRtmp.h
index 465c893f..d1277dc6 100644
--- a/src/Extension/CommonRtmp.h
+++ b/src/Extension/CommonRtmp.h
@@ -19,7 +19,7 @@ namespace mediakit{
 /**
  * 通用 rtmp解码类
  */
-class CommonRtmpDecoder : public RtmpCodec , public ResourcePoolHelper<FrameImp> {
+class CommonRtmpDecoder : public RtmpCodec {
 public:
     typedef std::shared_ptr<CommonRtmpDecoder> Ptr;
 
diff --git a/src/Extension/CommonRtp.cpp b/src/Extension/CommonRtp.cpp
index 3dbf421b..039bf93d 100644
--- a/src/Extension/CommonRtp.cpp
+++ b/src/Extension/CommonRtp.cpp
@@ -21,10 +21,7 @@ CodecId CommonRtpDecoder::getCodecId() const {
 }
 
 void CommonRtpDecoder::obtainFrame() {
-    _frame = ResourcePoolHelper<FrameImp>::obtainObj();
-    _frame->_buffer.clear();
-    _frame->_prefix_size = 0;
-    _frame->_dts = 0;
+    _frame = FrameImp::create();
     _frame->_codec_id = _codec;
 }
 
diff --git a/src/Extension/CommonRtp.h b/src/Extension/CommonRtp.h
index f03189cd..40828dc9 100644
--- a/src/Extension/CommonRtp.h
+++ b/src/Extension/CommonRtp.h
@@ -19,7 +19,7 @@ namespace mediakit{
 /**
  * 通用 rtp解码类
  */
-class CommonRtpDecoder : public RtpCodec, public ResourcePoolHelper<FrameImp> {
+class CommonRtpDecoder : public RtpCodec {
 public:
     typedef std::shared_ptr <CommonRtpDecoder> Ptr;
 
diff --git a/src/Extension/Frame.cpp b/src/Extension/Frame.cpp
index ec5bb3b6..39e04a45 100644
--- a/src/Extension/Frame.cpp
+++ b/src/Extension/Frame.cpp
@@ -9,6 +9,8 @@
  */
 
 #include "Frame.h"
+#include "H264.h"
+#include "H265.h"
 
 using namespace std;
 using namespace toolkit;
@@ -20,6 +22,34 @@ namespace toolkit {
 
 namespace mediakit{
 
+template<typename C>
+std::shared_ptr<C> FrameImp::create_l() {
+#if 0
+    static ResourcePool<C> packet_pool;
+    static onceToken token([]() {
+        packet_pool.setSize(1024);
+    });
+    auto ret = packet_pool.obtain();
+    ret->_buffer.clear();
+    ret->_prefix_size = 0;
+    ret->_dts = 0;
+    ret->_pts = 0;
+    return ret;
+#else
+    return std::shared_ptr<C>(new C());
+#endif
+}
+
+#define CREATE_FRAME_IMP(C) \
+template<> \
+std::shared_ptr<C> FrameImp::create<C>() { \
+    return create_l<C>(); \
+}
+
+CREATE_FRAME_IMP(FrameImp);
+CREATE_FRAME_IMP(H264Frame);
+CREATE_FRAME_IMP(H265Frame);
+
 /**
  * 该对象的功能是把一个不可缓存的帧转换成可缓存的帧
  */
@@ -32,8 +62,8 @@ public:
             _frame = frame;
             _ptr = frame->data();
         }else{
-            _buffer = std::make_shared<BufferRaw>();
-            _buffer->assign(frame->data(),frame->size());
+            _buffer = FrameImp::create();
+            _buffer->_buffer.assign(frame->data(),frame->size());
             _ptr = _buffer->data();
         }
         _size = frame->size();
@@ -66,7 +96,7 @@ private:
     bool _key;
     bool _config;
     Frame::Ptr _frame;
-    BufferRaw::Ptr _buffer;
+    FrameImp::Ptr _buffer;
 };
 
 Frame::Ptr Frame::getCacheAbleFrame(const Frame::Ptr &frame){
diff --git a/src/Extension/Frame.h b/src/Extension/Frame.h
index e7b87035..4da57732 100644
--- a/src/Extension/Frame.h
+++ b/src/Extension/Frame.h
@@ -130,7 +130,10 @@ private:
 
 class FrameImp : public Frame {
 public:
-    typedef std::shared_ptr<FrameImp> Ptr;
+    using Ptr = std::shared_ptr<FrameImp>;
+
+    template<typename C=FrameImp>
+    static std::shared_ptr<C> create();
 
     char *data() const override{
         return (char *)_buffer.data();
@@ -172,6 +175,13 @@ public:
     BufferLikeString _buffer;
     //对象个数统计
     ObjectStatistic<FrameImp> _statistic;
+
+protected:
+    friend class ResourcePool_l<FrameImp>;
+    FrameImp() = default;
+
+    template<typename C>
+    static std::shared_ptr<C> create_l();
 };
 
 /**
@@ -195,26 +205,6 @@ private:
     Frame::Ptr _parent_frame;
 };
 
-/**
- * 循环池辅助类
- */
-template <typename T>
-class ResourcePoolHelper{
-public:
-    ResourcePoolHelper(int size = 0){
-        if (size > 0) {
-            _pool.setSize(size);
-        }
-    }
-    virtual ~ResourcePoolHelper(){}
-
-    std::shared_ptr<T> obtainObj(){
-        return _pool.obtain();
-    }
-private:
-    ResourcePool<T> _pool;
-};
-
 /**
  * 写帧接口的抽象接口类
  */
diff --git a/src/Extension/G711.cpp b/src/Extension/G711.cpp
index 9f3e8ec5..da86d5a2 100644
--- a/src/Extension/G711.cpp
+++ b/src/Extension/G711.cpp
@@ -12,6 +12,47 @@
 
 namespace mediakit{
 
+/**
+ * G711类型SDP
+ */
+class G711Sdp : public Sdp {
+public:
+    /**
+     * G711采样率固定为8000
+     * @param codecId G711A G711U
+     * @param sample_rate 音频采样率
+     * @param payload_type rtp payload
+     * @param bitrate 比特率
+     */
+    G711Sdp(CodecId codecId,
+            int sample_rate,
+            int channels,
+            int bitrate = 128,
+            int payload_type = 98) : Sdp(sample_rate,payload_type), _codecId(codecId){
+        _printer << "m=audio 0 RTP/AVP " << payload_type << "\r\n";
+        if (bitrate) {
+            _printer << "b=AS:" << bitrate << "\r\n";
+        }
+        _printer << "a=rtpmap:" << payload_type << (codecId == CodecG711A ? " PCMA/" : " PCMU/") << sample_rate  << "/" << channels << "\r\n";
+        _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
+    }
+
+    string getSdp() const override {
+        return _printer;
+    }
+
+    CodecId getCodecId() const override {
+        return _codecId;
+    }
+private:
+    _StrPrinter _printer;
+    CodecId _codecId;
+};
+
+Track::Ptr G711Track::clone() {
+    return std::make_shared<std::remove_reference<decltype(*this)>::type>(*this);
+}
+
 Sdp::Ptr G711Track::getSdp() {
     if(!ready()){
         WarnL << getCodecName() << " Track未准备好";
diff --git a/src/Extension/G711.h b/src/Extension/G711.h
index 69f87764..bcf5f677 100644
--- a/src/Extension/G711.h
+++ b/src/Extension/G711.h
@@ -21,53 +21,12 @@ namespace mediakit{
  */
 class G711Track : public AudioTrackImp{
 public:
-    typedef std::shared_ptr<G711Track> Ptr;
+    using Ptr = std::shared_ptr<G711Track>;
     G711Track(CodecId codecId,int sample_rate, int channels, int sample_bit) : AudioTrackImp(codecId,sample_rate,channels,sample_bit){}
 
 private:
-    //克隆该Track
-    Track::Ptr clone() override {
-        return std::make_shared<std::remove_reference<decltype(*this)>::type >(*this);
-    }
-    //生成sdp
-    Sdp::Ptr getSdp() override ;
-};
-
-/**
- * G711类型SDP
- */
-class G711Sdp : public Sdp {
-public:
-    /**
-     * G711采样率固定为8000
-     * @param codecId G711A G711U
-     * @param sample_rate 音频采样率
-     * @param payload_type rtp payload
-     * @param bitrate 比特率
-     */
-    G711Sdp(CodecId codecId,
-            int sample_rate,
-            int channels,
-            int bitrate = 128,
-            int payload_type = 98) : Sdp(sample_rate,payload_type), _codecId(codecId){
-        _printer << "m=audio 0 RTP/AVP " << payload_type << "\r\n";
-        if (bitrate) {
-            _printer << "b=AS:" << bitrate << "\r\n";
-        }
-        _printer << "a=rtpmap:" << payload_type << (codecId == CodecG711A ? " PCMA/" : " PCMU/") << sample_rate  << "/" << channels << "\r\n";
-        _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
-    }
-
-    string getSdp() const override {
-        return _printer;
-    }
-
-    CodecId getCodecId() const override {
-        return _codecId;
-    }
-private:
-    _StrPrinter _printer;
-    CodecId _codecId;
+    Sdp::Ptr getSdp() override;
+    Track::Ptr clone() override;
 };
 
 }//namespace mediakit
diff --git a/src/Extension/H264.cpp b/src/Extension/H264.cpp
index 7ed5cda2..7a7acd33 100644
--- a/src/Extension/H264.cpp
+++ b/src/Extension/H264.cpp
@@ -96,6 +96,174 @@ size_t prefixSize(const char *ptr, size_t len){
     return 0;
 }
 
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+H264Track::H264Track(const string &sps,const string &pps,int sps_prefix_len,int pps_prefix_len){
+    _sps = sps.substr(sps_prefix_len);
+    _pps = pps.substr(pps_prefix_len);
+    onReady();
+}
+
+H264Track::H264Track(const Frame::Ptr &sps,const Frame::Ptr &pps){
+    if(sps->getCodecId() != CodecH264 || pps->getCodecId() != CodecH264 ){
+        throw std::invalid_argument("必须输入H264类型的帧");
+    }
+    _sps = string(sps->data() + sps->prefixSize(),sps->size() - sps->prefixSize());
+    _pps = string(pps->data() + pps->prefixSize(),pps->size() - pps->prefixSize());
+    onReady();
+}
+
+const string &H264Track::getSps() const{
+    return _sps;
+}
+
+const string &H264Track::getPps() const{
+    return _pps;
+}
+
+CodecId H264Track::getCodecId() const {
+    return CodecH264;
+}
+
+int H264Track::getVideoHeight() const {
+    return _height;
+}
+
+int H264Track::getVideoWidth() const {
+    return _width;
+}
+
+float H264Track::getVideoFps() const {
+    return _fps;
+}
+
+bool H264Track::ready() {
+    return !_sps.empty() && !_pps.empty();
+}
+
+void H264Track::inputFrame(const Frame::Ptr &frame) {
+    using H264FrameInternal = FrameInternal<H264FrameNoCacheAble>;
+
+    int type = H264_TYPE(*((uint8_t *) frame->data() + frame->prefixSize()));
+    if (type != H264Frame::NAL_B_P && type != H264Frame::NAL_IDR) {
+        //非I/B/P帧情况下，split一下，防止多个帧粘合在一起
+        splitH264(frame->data(), frame->size(), frame->prefixSize(), [&](const char *ptr, size_t len, size_t prefix) {
+            H264FrameInternal::Ptr sub_frame = std::make_shared<H264FrameInternal>(frame, (char *) ptr, len, prefix);
+            inputFrame_l(sub_frame);
+        });
+    } else {
+        inputFrame_l(frame);
+    }
+}
+
+void H264Track::onReady(){
+    getAVCInfo(_sps,_width,_height,_fps);
+}
+
+Track::Ptr H264Track::clone() {
+    return std::make_shared<std::remove_reference<decltype(*this)>::type >(*this);
+}
+
+void H264Track::inputFrame_l(const Frame::Ptr &frame){
+    int type = H264_TYPE(*((uint8_t *) frame->data() + frame->prefixSize()));
+    switch (type) {
+        case H264Frame::NAL_SPS: {
+            _sps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
+            break;
+        }
+        case H264Frame::NAL_PPS: {
+            _pps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
+            break;
+        }
+        case H264Frame::NAL_IDR: {
+            insertConfigFrame(frame);
+            VideoTrack::inputFrame(frame);
+            break;
+        }
+        case H264Frame::NAL_AUD: {
+            //忽略AUD帧;
+            break;
+        }
+
+        default:
+            VideoTrack::inputFrame(frame);
+            break;
+    }
+
+    _is_idr = type == H264Frame::NAL_IDR;
+    if (_width == 0 && ready()) {
+        onReady();
+    }
+}
+
+void H264Track::insertConfigFrame(const Frame::Ptr &frame){
+    if(_is_idr){
+        return;
+    }
+
+    if(!_sps.empty()){
+        auto spsFrame = FrameImp::create<H264Frame>();
+        spsFrame->_prefix_size = 4;
+        spsFrame->_buffer.assign("\x00\x00\x00\x01",4);
+        spsFrame->_buffer.append(_sps);
+        spsFrame->_dts = frame->dts();
+        VideoTrack::inputFrame(spsFrame);
+    }
+
+    if(!_pps.empty()){
+        auto ppsFrame = FrameImp::create<H264Frame>();
+        ppsFrame->_prefix_size = 4;
+        ppsFrame->_buffer.assign("\x00\x00\x00\x01",4);
+        ppsFrame->_buffer.append(_pps);
+        ppsFrame->_dts = frame->dts();
+        VideoTrack::inputFrame(ppsFrame);
+    }
+}
+
+class H264Sdp : public Sdp {
+public:
+    H264Sdp(const string &strSPS, const string &strPPS, int bitrate, int payload_type = 96)
+        : Sdp(90000, payload_type) {
+        //视频通道
+        _printer << "m=video 0 RTP/AVP " << payload_type << "\r\n";
+        if (bitrate) {
+            _printer << "b=AS:" << bitrate << "\r\n";
+        }
+        _printer << "a=rtpmap:" << payload_type << " H264/" << 90000 << "\r\n";
+        _printer << "a=fmtp:" << payload_type << " packetization-mode=1; profile-level-id=";
+
+        char strTemp[100];
+        uint32_t profile_level_id = 0;
+        if (strSPS.length() >= 4) { // sanity check
+            profile_level_id = (uint8_t(strSPS[1]) << 16) |
+                               (uint8_t(strSPS[2]) << 8) |
+                               (uint8_t(strSPS[3])); // profile_idc|constraint_setN_flag|level_idc
+        }
+        memset(strTemp, 0, 100);
+        snprintf(strTemp, sizeof(strTemp), "%06X", profile_level_id);
+        _printer << strTemp;
+        _printer << "; sprop-parameter-sets=";
+        memset(strTemp, 0, 100);
+        av_base64_encode(strTemp, 100, (uint8_t *) strSPS.data(), (int) strSPS.size());
+        _printer << strTemp << ",";
+        memset(strTemp, 0, 100);
+        av_base64_encode(strTemp, 100, (uint8_t *) strPPS.data(), (int) strPPS.size());
+        _printer << strTemp << "\r\n";
+        _printer << "a=control:trackID=" << (int) TrackVideo << "\r\n";
+    }
+
+    string getSdp() const {
+        return _printer;
+    }
+
+    CodecId getCodecId() const {
+        return CodecH264;
+    }
+
+private:
+    _StrPrinter _printer;
+};
+
 Sdp::Ptr H264Track::getSdp() {
     if(!ready()){
         WarnL << getCodecName() << " Track未准备好";
@@ -103,6 +271,48 @@ Sdp::Ptr H264Track::getSdp() {
     }
     return std::make_shared<H264Sdp>(getSps(), getPps(), getBitRate() / 1024);
 }
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+bool H264Frame::keyFrame() const {
+    return H264_TYPE(_buffer[_prefix_size]) == H264Frame::NAL_IDR;
+}
+
+bool H264Frame::configFrame() const {
+    switch (H264_TYPE(_buffer[_prefix_size])) {
+        case H264Frame::NAL_SPS:
+        case H264Frame::NAL_PPS: return true;
+        default: return false;
+    }
+}
+
+H264Frame::H264Frame() {
+    _codec_id = CodecH264;
+}
+
+////////////////////////////////////////////////////////////////////////////////////////////////////
+
+H264FrameNoCacheAble::H264FrameNoCacheAble(char *ptr,size_t size,uint32_t dts , uint32_t pts ,size_t prefix_size){
+    _ptr = ptr;
+    _size = size;
+    _dts = dts;
+    _pts = pts;
+    _prefix_size = prefix_size;
+    _codec_id = CodecH264;
+}
+
+bool H264FrameNoCacheAble::keyFrame() const {
+    return H264_TYPE(_ptr[_prefix_size]) == H264Frame::NAL_IDR;
+}
+
+bool H264FrameNoCacheAble::configFrame() const {
+    switch (H264_TYPE(_ptr[_prefix_size])) {
+        case H264Frame::NAL_SPS:
+        case H264Frame::NAL_PPS: return true;
+        default: return false;
+    }
+}
+
 }//namespace mediakit
 
 
diff --git a/src/Extension/H264.h b/src/Extension/H264.h
index 471dc4cb..395b0ea8 100644
--- a/src/Extension/H264.h
+++ b/src/Extension/H264.h
@@ -14,45 +14,38 @@
 #include "Frame.h"
 #include "Track.h"
 #include "Util/base64.h"
-using namespace toolkit;
 #define H264_TYPE(v) ((uint8_t)(v) & 0x1F)
+using namespace toolkit;
 
 namespace mediakit{
 
 bool getAVCInfo(const string &strSps,int &iVideoWidth, int &iVideoHeight, float &iVideoFps);
 void splitH264(const char *ptr, size_t len, size_t prefix, const std::function<void(const char *, size_t, size_t)> &cb);
 size_t prefixSize(const char *ptr, size_t len);
+
 /**
  * 264帧类
  */
 class H264Frame : public FrameImp {
 public:
-    typedef std::shared_ptr<H264Frame> Ptr;
+    using Ptr = std::shared_ptr<H264Frame>;
 
-    typedef enum {
+    enum {
         NAL_IDR = 5,
         NAL_SEI = 6,
         NAL_SPS = 7,
         NAL_PPS = 8,
         NAL_AUD = 9,
         NAL_B_P = 1,
-    } NalType;
+    };
 
-    H264Frame(){
-        _codec_id = CodecH264;
-    }
+    bool keyFrame() const override;
+    bool configFrame() const override;
 
-    bool keyFrame() const override {
-        return H264_TYPE(_buffer[_prefix_size]) == H264Frame::NAL_IDR;
-    }
-
-    bool configFrame() const override{
-        switch(H264_TYPE(_buffer[_prefix_size]) ){
-            case H264Frame::NAL_SPS:
-            case H264Frame::NAL_PPS:return true;
-            default:return false;
-        }
-    }
+protected:
+    friend class FrameImp;
+    friend class ResourcePool_l<H264Frame>;
+    H264Frame();
 };
 
 /**
@@ -62,44 +55,26 @@ public:
  */
 class H264FrameNoCacheAble : public FrameFromPtr {
 public:
-    typedef std::shared_ptr<H264FrameNoCacheAble> Ptr;
+    using Ptr = std::shared_ptr<H264FrameNoCacheAble>;
 
-    H264FrameNoCacheAble(char *ptr,size_t size,uint32_t dts , uint32_t pts ,size_t prefix_size = 4){
-        _ptr = ptr;
-        _size = size;
-        _dts = dts;
-        _pts = pts;
-        _prefix_size = prefix_size;
-        _codec_id = CodecH264;
-    }
-
-    bool keyFrame() const override {
-        return H264_TYPE(_ptr[_prefix_size]) == H264Frame::NAL_IDR;
-    }
-
-    bool configFrame() const override{
-        switch(H264_TYPE(_ptr[_prefix_size])){
-            case H264Frame::NAL_SPS:
-            case H264Frame::NAL_PPS:return true;
-            default:return false;
-        }
-    }
+    H264FrameNoCacheAble(char *ptr,size_t size,uint32_t dts , uint32_t pts ,size_t prefix_size = 4);
+    bool keyFrame() const override;
+    bool configFrame() const override;
 };
 
-typedef FrameInternal<H264FrameNoCacheAble> H264FrameInternal;
-
 /**
  * 264视频通道
  */
 class H264Track : public VideoTrack{
 public:
-    typedef std::shared_ptr<H264Track> Ptr;
+    using Ptr = std::shared_ptr<H264Track>;
 
     /**
      * 不指定sps pps构造h264类型的媒体
      * 在随后的inputFrame中获取sps pps
      */
-    H264Track(){}
+    H264Track() = default;
+
     /**
      * 构造h264类型的媒体
      * @param sps sps帧数据
@@ -107,230 +82,42 @@ public:
      * @param sps_prefix_len 264头长度，可以为3个或4个字节，一般为0x00 00 00 01
      * @param pps_prefix_len 264头长度，可以为3个或4个字节，一般为0x00 00 00 01
      */
-    H264Track(const string &sps,const string &pps,int sps_prefix_len = 4,int pps_prefix_len = 4){
-        _sps = sps.substr(sps_prefix_len);
-        _pps = pps.substr(pps_prefix_len);
-        onReady();
-    }
+    H264Track(const string &sps,const string &pps,int sps_prefix_len = 4,int pps_prefix_len = 4);
 
     /**
      * 构造h264类型的媒体
      * @param sps sps帧
      * @param pps pps帧
      */
-    H264Track(const Frame::Ptr &sps,const Frame::Ptr &pps){
-        if(sps->getCodecId() != CodecH264 || pps->getCodecId() != CodecH264 ){
-            throw std::invalid_argument("必须输入H264类型的帧");
-        }
-        _sps = string(sps->data() + sps->prefixSize(),sps->size() - sps->prefixSize());
-        _pps = string(pps->data() + pps->prefixSize(),pps->size() - pps->prefixSize());
-        onReady();
-    }
+    H264Track(const Frame::Ptr &sps,const Frame::Ptr &pps);
 
     /**
-     * 返回不带0x00 00 00 01头的sps
-     * @return
+     * 返回不带0x00 00 00 01头的sps/pps
      */
-    const string &getSps() const{
-        return _sps;
-    }
+    const string &getSps() const;
+    const string &getPps() const;
 
-    /**
-     * 返回不带0x00 00 00 01头的pps
-     * @return
-     */
-    const string &getPps() const{
-        return _pps;
-    }
+    bool ready() override;
+    CodecId getCodecId() const override;
+    int getVideoHeight() const override;
+    int getVideoWidth() const override;
+    float getVideoFps() const override;
+    void inputFrame(const Frame::Ptr &frame) override;
 
-    CodecId getCodecId() const override {
-        return CodecH264;
-    }
-
-    /**
-     * 返回视频高度
-     * @return
-     */
-    int getVideoHeight() const override{
-        return _height ;
-    }
-
-    /**
-     * 返回视频宽度
-     * @return
-     */
-    int getVideoWidth() const override{
-        return _width;
-    }
-
-    /**
-     * 返回视频fps
-     * @return
-     */
-    float getVideoFps() const override{
-        return _fps;
-    }
-
-    bool ready() override {
-        return !_sps.empty() && !_pps.empty();
-    }
-
-    /**
-    * 输入数据帧,并获取sps pps
-    * @param frame 数据帧
-    */
-    void inputFrame(const Frame::Ptr &frame) override{
-        int type = H264_TYPE(*((uint8_t *)frame->data() + frame->prefixSize()));
-        if(type != H264Frame::NAL_B_P && type != H264Frame::NAL_IDR){
-            //非I/B/P帧情况下，split一下，防止多个帧粘合在一起
-            splitH264(frame->data(), frame->size(), frame->prefixSize(), [&](const char *ptr, size_t len, size_t prefix) {
-                H264FrameInternal::Ptr sub_frame = std::make_shared<H264FrameInternal>(frame, (char *)ptr, len, prefix);
-                inputFrame_l(sub_frame);
-            });
-        } else{
-            inputFrame_l(frame);
-        }
-    }
 private:
-    /**
-     * 解析sps获取宽高fps
-     */
-    void onReady(){
-        getAVCInfo(_sps,_width,_height,_fps);
-    }
-    Track::Ptr clone() override {
-        return std::make_shared<std::remove_reference<decltype(*this)>::type >(*this);
-    }
+    void onReady();
+    Sdp::Ptr getSdp() override;
+    Track::Ptr clone() override;
+    void inputFrame_l(const Frame::Ptr &frame);
+    void insertConfigFrame(const Frame::Ptr &frame);
 
-    /**
-     * 输入数据帧,并获取sps pps
-     * @param frame 数据帧
-     */
-    void inputFrame_l(const Frame::Ptr &frame){
-        int type = H264_TYPE(*((uint8_t *)frame->data() + frame->prefixSize()));
-        switch (type){
-            case H264Frame::NAL_SPS:{
-                //sps
-                _sps = string(frame->data() + frame->prefixSize(),frame->size() - frame->prefixSize());
-            }
-                break;
-            case H264Frame::NAL_PPS:{
-                //pps
-                _pps = string(frame->data() + frame->prefixSize(),frame->size() - frame->prefixSize());
-            }
-                break;
-
-            case H264Frame::NAL_IDR:{
-                //I
-                insertConfigFrame(frame);
-                VideoTrack::inputFrame(frame);
-            }
-                break;
-            case H264Frame::NAL_AUD:{
-                //忽略AUD帧;
-            }
-                break;
-
-            default:
-                VideoTrack::inputFrame(frame);
-                break;
-        }
-
-        _last_frame_is_idr = type == H264Frame::NAL_IDR;
-        if(_width == 0 && ready()){
-            onReady();
-        }
-    }
-
-    //生成sdp
-    Sdp::Ptr getSdp() override ;
 private:
-    //在idr帧前插入sps pps帧
-    void insertConfigFrame(const Frame::Ptr &frame){
-        if(_last_frame_is_idr){
-            return;
-        }
-
-        if(!_sps.empty()){
-            auto spsFrame = std::make_shared<H264Frame>();
-            spsFrame->_prefix_size = 4;
-            spsFrame->_buffer.assign("\x0\x0\x0\x1",4);
-            spsFrame->_buffer.append(_sps);
-            spsFrame->_dts = frame->dts();
-            VideoTrack::inputFrame(spsFrame);
-        }
-
-        if(!_pps.empty()){
-            auto ppsFrame = std::make_shared<H264Frame>();
-            ppsFrame->_prefix_size = 4;
-            ppsFrame->_buffer.assign("\x0\x0\x0\x1",4);
-            ppsFrame->_buffer.append(_pps);
-            ppsFrame->_dts = frame->dts();
-            VideoTrack::inputFrame(ppsFrame);
-        }
-    }
-private:
-    string _sps;
-    string _pps;
+    bool _is_idr = false;
     int _width = 0;
     int _height = 0;
     float _fps = 0;
-    bool _last_frame_is_idr = false;
-};
-
-/**
-* h264类型sdp
-*/
-class H264Sdp : public Sdp {
-public:
-    /**
-     *
-     * @param sps 264 sps,不带0x00000001头
-     * @param pps 264 pps,不带0x00000001头
-     * @param payload_type  rtp payload type 默认96
-     * @param bitrate 比特率
-     */
-    H264Sdp(const string &strSPS,
-            const string &strPPS,
-            int bitrate = 4000,
-            int payload_type = 96) : Sdp(90000,payload_type) {
-        //视频通道
-        _printer << "m=video 0 RTP/AVP " << payload_type << "\r\n";
-        if (bitrate) {
-            _printer << "b=AS:" << bitrate << "\r\n";
-        }
-        _printer << "a=rtpmap:" << payload_type << " H264/" << 90000 << "\r\n";
-        _printer << "a=fmtp:" << payload_type << " packetization-mode=1; profile-level-id=";
-
-        char strTemp[100];
-        uint32_t profile_level_id = 0;
-        if (strSPS.length() >= 4) { // sanity check
-            profile_level_id = (uint8_t(strSPS[1]) << 16) |
-                               (uint8_t(strSPS[2]) << 8)  |
-                               (uint8_t(strSPS[3])); // profile_idc|constraint_setN_flag|level_idc
-        }
-        memset(strTemp, 0, 100);
-        snprintf(strTemp, sizeof(strTemp), "%06X", profile_level_id);
-        _printer << strTemp;
-        _printer << "; sprop-parameter-sets=";
-        memset(strTemp, 0, 100);
-        av_base64_encode(strTemp, 100, (uint8_t *) strSPS.data(), (int)strSPS.size());
-        _printer << strTemp << ",";
-        memset(strTemp, 0, 100);
-        av_base64_encode(strTemp, 100, (uint8_t *) strPPS.data(), (int)strPPS.size());
-        _printer << strTemp << "\r\n";
-        _printer << "a=control:trackID=" << (int)TrackVideo << "\r\n";
-    }
-
-    string getSdp() const override {
-        return _printer;
-    }
-
-    CodecId getCodecId() const override {
-        return CodecH264;
-    }
-private:
-    _StrPrinter _printer;
+    string _sps;
+    string _pps;
 };
 
 }//namespace mediakit
diff --git a/src/Extension/H264Rtmp.cpp b/src/Extension/H264Rtmp.cpp
index 88e926b2..3cd4d04f 100644
--- a/src/Extension/H264Rtmp.cpp
+++ b/src/Extension/H264Rtmp.cpp
@@ -15,10 +15,8 @@ H264RtmpDecoder::H264RtmpDecoder() {
     _h264frame = obtainFrame();
 }
 
-H264Frame::Ptr  H264RtmpDecoder::obtainFrame() {
-    //从缓存池重新申请对象，防止覆盖已经写入环形缓存的对象
-    auto frame = obtainObj();
-    frame->_buffer.clear();
+H264Frame::Ptr H264RtmpDecoder::obtainFrame() {
+    auto frame = FrameImp::create<H264Frame>();
     frame->_prefix_size = 4;
     return frame;
 }
@@ -124,7 +122,7 @@ inline void H264RtmpDecoder::onGetH264(const char* pcData, size_t iLen, uint32_t
 #if 1
     _h264frame->_dts = dts;
     _h264frame->_pts = pts;
-    _h264frame->_buffer.assign("\x0\x0\x0\x1", 4);  //添加264头
+    _h264frame->_buffer.assign("\x00\x00\x00\x01", 4);  //添加264头
     _h264frame->_buffer.append(pcData, iLen);
 
     //写入环形缓存
diff --git a/src/Extension/H264Rtmp.h b/src/Extension/H264Rtmp.h
index cc20d98d..a7c243ca 100644
--- a/src/Extension/H264Rtmp.h
+++ b/src/Extension/H264Rtmp.h
@@ -22,7 +22,7 @@ namespace mediakit{
  * h264 Rtmp解码类
  * 将 h264 over rtmp 解复用出 h264-Frame
  */
-class H264RtmpDecoder : public RtmpCodec ,public ResourcePoolHelper<H264Frame> {
+class H264RtmpDecoder : public RtmpCodec {
 public:
     typedef std::shared_ptr<H264RtmpDecoder> Ptr;
 
diff --git a/src/Extension/H264Rtp.cpp b/src/Extension/H264Rtp.cpp
index f9e33fb0..e749fa1b 100644
--- a/src/Extension/H264Rtp.cpp
+++ b/src/Extension/H264Rtp.cpp
@@ -34,10 +34,8 @@ H264RtpDecoder::H264RtpDecoder() {
     _h264frame = obtainFrame();
 }
 
-H264Frame::Ptr  H264RtpDecoder::obtainFrame() {
-    //从缓存池重新申请对象，防止覆盖已经写入环形缓存的对象
-    auto frame = ResourcePoolHelper<H264Frame>::obtainObj();
-    frame->_buffer.clear();
+H264Frame::Ptr H264RtpDecoder::obtainFrame() {
+    auto frame = FrameImp::create<H264Frame>();
     frame->_prefix_size = 4;
     return frame;
 }
@@ -81,7 +79,7 @@ bool H264RtpDecoder::decodeRtp(const RtpPacket::Ptr &rtp) {
 
     if (nal_type >= 0 && nal_type < 24) {
         //a full frame
-        _h264frame->_buffer.assign("\x0\x0\x0\x1", 4);
+        _h264frame->_buffer.assign("\x00\x00\x00\x01", 4);
         _h264frame->_buffer.append((char *) frame, length);
         _h264frame->_pts = stamp;
         auto key = _h264frame->keyFrame();
@@ -108,7 +106,7 @@ bool H264RtpDecoder::decodeRtp(const RtpPacket::Ptr &rtp) {
                 }
                 if (len > 0) {
                     //有有效数据
-                    _h264frame->_buffer.assign("\x0\x0\x0\x1", 4);
+                    _h264frame->_buffer.assign("\x00\x00\x00\x01", 4);
                     _h264frame->_buffer.append((char *) ptr, len);
                     _h264frame->_pts = stamp;
                     if ((ptr[0] & 0x1F) == H264Frame::NAL_IDR) {
@@ -127,7 +125,7 @@ bool H264RtpDecoder::decodeRtp(const RtpPacket::Ptr &rtp) {
             MakeFU(frame[1], fu);
             if (fu.S) {
                 //该帧的第一个rtp包  FU-A start
-                _h264frame->_buffer.assign("\x0\x0\x0\x1", 4);
+                _h264frame->_buffer.assign("\x00\x00\x00\x01", 4);
                 _h264frame->_buffer.push_back(nal_suffix | fu.type);
                 _h264frame->_buffer.append((char *) frame + 2, length - 2);
                 _h264frame->_pts = stamp;
diff --git a/src/Extension/H264Rtp.h b/src/Extension/H264Rtp.h
index 51b9aaaf..303c77a5 100644
--- a/src/Extension/H264Rtp.h
+++ b/src/Extension/H264Rtp.h
@@ -24,7 +24,7 @@ namespace mediakit{
  * 将 h264 over rtsp-rtp 解复用出 h264-Frame
  * rfc3984
  */
-class H264RtpDecoder : public RtpCodec , public ResourcePoolHelper<H264Frame> {
+class H264RtpDecoder : public RtpCodec{
 public:
     typedef std::shared_ptr<H264RtpDecoder> Ptr;
 
diff --git a/src/Extension/H265.cpp b/src/Extension/H265.cpp
index 179b09d8..db670bc5 100644
--- a/src/Extension/H265.cpp
+++ b/src/Extension/H265.cpp
@@ -10,7 +10,6 @@
 
 #include "H265.h"
 #include "SPSParser.h"
-#include "Util/logger.h"
 
 namespace mediakit{
 
@@ -42,7 +41,6 @@ bool getHEVCInfo(const char * vps, size_t vps_len,const char * sps,size_t sps_le
     h265GetWidthHeight(&tH265SpsInfo, &iVideoWidth, &iVideoHeight);
     iVideoFps = 0;
     h265GeFramerate(&tH265VpsInfo, &tH265SpsInfo, &iVideoFps);
-//    ErrorL << iVideoWidth << " " << iVideoHeight << " " << iVideoFps;
     return true;
 }
 
@@ -50,6 +48,228 @@ bool getHEVCInfo(const string &strVps, const string &strSps, int &iVideoWidth, i
     return getHEVCInfo(strVps.data(), strVps.size(), strSps.data(), strSps.size(), iVideoWidth, iVideoHeight,iVideoFps);
 }
 
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+bool H265Frame::keyFrame() const {
+    return isKeyFrame(H265_TYPE(_buffer[_prefix_size]));
+}
+
+bool H265Frame::configFrame() const {
+    switch (H265_TYPE(_buffer[_prefix_size])) {
+        case H265Frame::NAL_VPS:
+        case H265Frame::NAL_SPS:
+        case H265Frame::NAL_PPS : return true;
+        default : return false;
+    }
+}
+
+bool H265Frame::isKeyFrame(int type) {
+    return type >= NAL_BLA_W_LP && type <= NAL_RSV_IRAP_VCL23;
+}
+
+H265Frame::H265Frame(){
+    _codec_id = CodecH265;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+H265FrameNoCacheAble::H265FrameNoCacheAble(char *ptr, size_t size, uint32_t dts, uint32_t pts, size_t prefix_size) {
+    _ptr = ptr;
+    _size = size;
+    _dts = dts;
+    _pts = pts;
+    _prefix_size = prefix_size;
+    _codec_id = CodecH265;
+}
+
+bool H265FrameNoCacheAble::keyFrame() const {
+    return H265Frame::isKeyFrame(H265_TYPE(((uint8_t *) _ptr)[_prefix_size]));
+}
+
+bool H265FrameNoCacheAble::configFrame() const {
+    switch (H265_TYPE(((uint8_t *) _ptr)[_prefix_size])) {
+        case H265Frame::NAL_VPS:
+        case H265Frame::NAL_SPS:
+        case H265Frame::NAL_PPS: return true;
+        default: return false;
+    }
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+H265Track::H265Track(const string &vps,const string &sps, const string &pps,int vps_prefix_len, int sps_prefix_len, int pps_prefix_len) {
+    _vps = vps.substr(vps_prefix_len);
+    _sps = sps.substr(sps_prefix_len);
+    _pps = pps.substr(pps_prefix_len);
+    onReady();
+}
+
+const string &H265Track::getVps() const {
+    return _vps;
+}
+
+const string &H265Track::getSps() const {
+    return _sps;
+}
+
+const string &H265Track::getPps() const {
+    return _pps;
+}
+
+CodecId H265Track::getCodecId() const {
+    return CodecH265;
+}
+
+int H265Track::getVideoHeight() const {
+    return _height;
+}
+
+int H265Track::getVideoWidth() const {
+    return _width;
+}
+
+float H265Track::getVideoFps() const {
+    return _fps;
+}
+
+bool H265Track::ready() {
+    return !_vps.empty() && !_sps.empty() && !_pps.empty();
+}
+
+void H265Track::inputFrame(const Frame::Ptr &frame) {
+    using H265FrameInternal = FrameInternal<H265FrameNoCacheAble>;
+
+    int type = H265_TYPE(*((uint8_t *) frame->data() + frame->prefixSize()));
+    if (frame->configFrame() || type == H265Frame::NAL_SEI_PREFIX) {
+        splitH264(frame->data(), frame->size(), frame->prefixSize(), [&](const char *ptr, size_t len, size_t prefix) {
+            H265FrameInternal::Ptr sub_frame = std::make_shared<H265FrameInternal>(frame, (char *) ptr, len, prefix);
+            inputFrame_l(sub_frame);
+        });
+    } else {
+        inputFrame_l(frame);
+    }
+}
+
+void H265Track::inputFrame_l(const Frame::Ptr &frame) {
+    int type = H265_TYPE(((uint8_t *) frame->data() + frame->prefixSize())[0]);
+    if (H265Frame::isKeyFrame(type)) {
+        insertConfigFrame(frame);
+        VideoTrack::inputFrame(frame);
+        _is_idr = true;
+        return;
+    }
+
+    _is_idr = false;
+
+    //非idr帧
+    switch (type) {
+        case H265Frame::NAL_VPS: {
+            _vps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
+            break;
+        }
+        case H265Frame::NAL_SPS: {
+            _sps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
+            break;
+        }
+        case H265Frame::NAL_PPS: {
+            _pps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
+            break;
+        }
+        default: {
+            VideoTrack::inputFrame(frame);
+            break;
+        }
+    }
+    if (_width == 0 && ready()) {
+        onReady();
+    }
+}
+
+void H265Track::onReady() {
+    getHEVCInfo(_vps, _sps, _width, _height, _fps);
+}
+
+Track::Ptr H265Track::clone() {
+    return std::make_shared<std::remove_reference<decltype(*this)>::type>(*this);
+}
+
+void H265Track::insertConfigFrame(const Frame::Ptr &frame) {
+    if (_is_idr) {
+        return;
+    }
+    if (!_vps.empty()) {
+        auto vpsFrame = FrameImp::create<H265Frame>();
+        vpsFrame->_prefix_size = 4;
+        vpsFrame->_buffer.assign("\x00\x00\x00\x01", 4);
+        vpsFrame->_buffer.append(_vps);
+        vpsFrame->_dts = frame->dts();
+        VideoTrack::inputFrame(vpsFrame);
+    }
+    if (!_sps.empty()) {
+        auto spsFrame = FrameImp::create<H265Frame>();
+        spsFrame->_prefix_size = 4;
+        spsFrame->_buffer.assign("\x00\x00\x00\x01", 4);
+        spsFrame->_buffer.append(_sps);
+        spsFrame->_dts = frame->dts();
+        VideoTrack::inputFrame(spsFrame);
+    }
+
+    if (!_pps.empty()) {
+        auto ppsFrame = FrameImp::create<H265Frame>();
+        ppsFrame->_prefix_size = 4;
+        ppsFrame->_buffer.assign("\x00\x00\x00\x01", 4);
+        ppsFrame->_buffer.append(_pps);
+        ppsFrame->_dts = frame->dts();
+        VideoTrack::inputFrame(ppsFrame);
+    }
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
+
+/**
+ * h265类型sdp
+ */
+class H265Sdp : public Sdp {
+public:
+    /**
+     * 构造函数
+     * @param sps 265 sps,不带0x00000001头
+     * @param pps 265 pps,不带0x00000001头
+     * @param payload_type  rtp payload type 默认96
+     * @param bitrate 比特率
+     */
+    H265Sdp(const string &strVPS,
+            const string &strSPS,
+            const string &strPPS,
+            int bitrate = 4000,
+            int payload_type = 96) : Sdp(90000,payload_type) {
+        //视频通道
+        _printer << "m=video 0 RTP/AVP " << payload_type << "\r\n";
+        if (bitrate) {
+            _printer << "b=AS:" << bitrate << "\r\n";
+        }
+        _printer << "a=rtpmap:" << payload_type << " H265/" << 90000 << "\r\n";
+        _printer << "a=fmtp:" << payload_type << " ";
+        _printer << "sprop-vps=";
+        _printer << encodeBase64(strVPS) << "; ";
+        _printer << "sprop-sps=";
+        _printer << encodeBase64(strSPS) << "; ";
+        _printer << "sprop-pps=";
+        _printer << encodeBase64(strPPS) << "\r\n";
+        _printer << "a=control:trackID=" << (int)TrackVideo << "\r\n";
+    }
+
+    string getSdp() const override {
+        return _printer;
+    }
+
+    CodecId getCodecId() const override {
+        return CodecH265;
+    }
+private:
+    _StrPrinter _printer;
+};
+
 Sdp::Ptr H265Track::getSdp() {
     if(!ready()){
         WarnL << getCodecName() << " Track未准备好";
@@ -57,5 +277,6 @@ Sdp::Ptr H265Track::getSdp() {
     }
     return std::make_shared<H265Sdp>(getVps(), getSps(), getPps(), getBitRate() / 1024);
 }
+
 }//namespace mediakit
 
diff --git a/src/Extension/H265.h b/src/Extension/H265.h
index 1f94e06e..c9dc671a 100644
--- a/src/Extension/H265.h
+++ b/src/Extension/H265.h
@@ -15,8 +15,8 @@
 #include "Track.h"
 #include "Util/base64.h"
 #include "H264.h"
-using namespace toolkit;
 #define H265_TYPE(v) (((uint8_t)(v) >> 1) & 0x3f)
+using namespace toolkit;
 
 namespace mediakit {
 
@@ -27,9 +27,8 @@ bool getHEVCInfo(const string &strVps, const string &strSps, int &iVideoWidth, i
  */
 class H265Frame : public FrameImp {
 public:
-    typedef std::shared_ptr<H265Frame> Ptr;
-
-    typedef enum {
+    using Ptr = std::shared_ptr<H265Frame>;
+    enum {
         NAL_TRAIL_N = 0,
         NAL_TRAIL_R = 1,
         NAL_TSA_N = 2,
@@ -58,71 +57,39 @@ public:
         NAL_FD_NUT = 38,
         NAL_SEI_PREFIX = 39,
         NAL_SEI_SUFFIX = 40,
-    } NaleType;
+    };
 
-    H265Frame(){
-        _codec_id = CodecH265;
-    }
+    bool keyFrame() const override;
+    bool configFrame() const override;
+    static bool isKeyFrame(int type);
 
-    bool keyFrame() const override {
-        return isKeyFrame(H265_TYPE(_buffer[_prefix_size]));
-    }
-
-    bool configFrame() const override{
-        switch(H265_TYPE(_buffer[_prefix_size])){
-            case H265Frame::NAL_VPS:
-            case H265Frame::NAL_SPS:
-            case H265Frame::NAL_PPS : return true;
-            default : return false;
-        }
-    }
-
-    static bool isKeyFrame(int type) {
-        return type >= NAL_BLA_W_LP && type <= NAL_RSV_IRAP_VCL23;
-    }
+protected:
+    friend class FrameImp;
+    friend class ResourcePool_l<H265Frame>;
+    H265Frame();
 };
 
 class H265FrameNoCacheAble : public FrameFromPtr {
 public:
-    typedef std::shared_ptr<H265FrameNoCacheAble> Ptr;
+    using Ptr = std::shared_ptr<H265FrameNoCacheAble>;
 
-    H265FrameNoCacheAble(char *ptr, size_t size, uint32_t dts,uint32_t pts, size_t prefix_size = 4) {
-        _ptr = ptr;
-        _size = size;
-        _dts = dts;
-        _pts = pts;
-        _prefix_size = prefix_size;
-        _codec_id = CodecH265;
-    }
-
-    bool keyFrame() const override {
-        return H265Frame::isKeyFrame(H265_TYPE(((uint8_t *) _ptr)[_prefix_size]));
-    }
-
-    bool configFrame() const override{
-        switch(H265_TYPE(((uint8_t *) _ptr)[_prefix_size])){
-            case H265Frame::NAL_VPS:
-            case H265Frame::NAL_SPS:
-            case H265Frame::NAL_PPS:return true;
-            default:return false;
-        }
-    }
+    H265FrameNoCacheAble(char *ptr, size_t size, uint32_t dts,uint32_t pts, size_t prefix_size = 4);
+    bool keyFrame() const override;
+    bool configFrame() const override;
 };
 
-typedef FrameInternal<H265FrameNoCacheAble> H265FrameInternal;
-
 /**
 * 265视频通道
 */
 class H265Track : public VideoTrack {
 public:
-    typedef std::shared_ptr<H265Track> Ptr;
+    using Ptr = std::shared_ptr<H265Track>;
 
     /**
      * 不指定sps pps构造h265类型的媒体
      * 在随后的inputFrame中获取sps pps
      */
-    H265Track() {}
+    H265Track() = default;
 
     /**
      * 构造h265类型的媒体
@@ -133,221 +100,37 @@ public:
      * @param sps_prefix_len 265头长度，可以为3个或4个字节，一般为0x00 00 00 01
      * @param pps_prefix_len 265头长度，可以为3个或4个字节，一般为0x00 00 00 01
      */
-    H265Track(const string &vps,const string &sps, const string &pps,int vps_prefix_len = 4, int sps_prefix_len = 4, int pps_prefix_len = 4) {
-        _vps = vps.substr(vps_prefix_len);
-        _sps = sps.substr(sps_prefix_len);
-        _pps = pps.substr(pps_prefix_len);
-        onReady();
-    }
+    H265Track(const string &vps,const string &sps, const string &pps,int vps_prefix_len = 4, int sps_prefix_len = 4, int pps_prefix_len = 4);
 
     /**
-     * 返回不带0x00 00 00 01头的vps
+     * 返回不带0x00 00 00 01头的vps/sps/pps
      */
-    const string &getVps() const {
-        return _vps;
-    }
+    const string &getVps() const;
+    const string &getSps() const;
+    const string &getPps() const;
 
-    /**
-     * 返回不带0x00 00 00 01头的sps
-     */
-    const string &getSps() const {
-        return _sps;
-    }
-
-    /**
-     * 返回不带0x00 00 00 01头的pps
-     */
-    const string &getPps() const {
-        return _pps;
-    }
-
-    CodecId getCodecId() const override {
-        return CodecH265;
-    }
-
-    /**
-     * 返回视频高度
-     */
-    int getVideoHeight() const override{
-        return _height ;
-    }
-
-    /**
-     * 返回视频宽度
-     */
-    int getVideoWidth() const override{
-        return _width;
-    }
-
-    /**
-     * 返回视频fps
-     */
-    float getVideoFps() const override{
-        return _fps;
-    }
-
-    bool ready() override {
-        return !_vps.empty() && !_sps.empty() && !_pps.empty();
-    }
-
-    /**
-     * 输入数据帧,并获取sps pps
-     * @param frame 数据帧
-     */
-    void inputFrame(const Frame::Ptr &frame) override{
-        int type = H265_TYPE(*((uint8_t *)frame->data() + frame->prefixSize()));
-        if(frame->configFrame() || type == H265Frame::NAL_SEI_PREFIX){
-            splitH264(frame->data(), frame->size(), frame->prefixSize(), [&](const char *ptr, size_t len, size_t prefix){
-                H265FrameInternal::Ptr sub_frame = std::make_shared<H265FrameInternal>(frame, (char*)ptr, len, prefix);
-                inputFrame_l(sub_frame);
-            });
-        } else {
-            inputFrame_l(frame);
-        }
-    }
+    bool ready() override;
+    CodecId getCodecId() const override;
+    int getVideoWidth() const override;
+    int getVideoHeight() const override;
+    float getVideoFps() const override;
+    void inputFrame(const Frame::Ptr &frame) override;
 
 private:
-    /**
-     * 输入数据帧,并获取sps pps
-     * @param frame 数据帧
-     */
-    void inputFrame_l(const Frame::Ptr &frame) {
-        int type = H265_TYPE(((uint8_t *) frame->data() + frame->prefixSize())[0]);
-        if (H265Frame::isKeyFrame(type)) {
-            insertConfigFrame(frame);
-            VideoTrack::inputFrame(frame);
-            _last_frame_is_idr = true;
-            return;
-        }
+    void onReady();
+    Sdp::Ptr getSdp() override;
+    Track::Ptr clone() override;
+    void inputFrame_l(const Frame::Ptr &frame);
+    void insertConfigFrame(const Frame::Ptr &frame);
 
-        _last_frame_is_idr = false;
-
-        //非idr帧
-        switch (type) {
-            case H265Frame::NAL_VPS: {
-                //vps
-                _vps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
-            }
-                break;
-
-            case H265Frame::NAL_SPS: {
-                //sps
-                _sps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
-            }
-                break;
-            case H265Frame::NAL_PPS: {
-                //pps
-                _pps = string(frame->data() + frame->prefixSize(), frame->size() - frame->prefixSize());
-            }
-                break;
-
-            default: {
-                //other frames
-                VideoTrack::inputFrame(frame);
-            }
-                break;
-        }
-        if (_width == 0 && ready()) {
-            onReady();
-        }
-    }
-
-    /**
-     * 解析sps获取宽高fps
-     */
-    void onReady(){
-        getHEVCInfo(_vps, _sps, _width, _height, _fps);
-    }
-    Track::Ptr clone() override {
-        return std::make_shared<std::remove_reference<decltype(*this)>::type>(*this);
-    }
-
-    //生成sdp
-    Sdp::Ptr getSdp() override ;
-
-    //在idr帧前插入vps sps pps帧
-    void insertConfigFrame(const Frame::Ptr &frame){
-        if(_last_frame_is_idr){
-            return;
-        }
-        if(!_vps.empty()){
-            auto vpsFrame = std::make_shared<H265Frame>();
-            vpsFrame->_prefix_size = 4;
-            vpsFrame->_buffer.assign("\x0\x0\x0\x1", 4);
-            vpsFrame->_buffer.append(_vps);
-            vpsFrame->_dts = frame->dts();
-            VideoTrack::inputFrame(vpsFrame);
-        }
-        if (!_sps.empty()) {
-            auto spsFrame = std::make_shared<H265Frame>();
-            spsFrame->_prefix_size = 4;
-            spsFrame->_buffer.assign("\x0\x0\x0\x1", 4);
-            spsFrame->_buffer.append(_sps);
-            spsFrame->_dts = frame->dts();
-            VideoTrack::inputFrame(spsFrame);
-        }
-
-        if (!_pps.empty()) {
-            auto ppsFrame = std::make_shared<H265Frame>();
-            ppsFrame->_prefix_size = 4;
-            ppsFrame->_buffer.assign("\x0\x0\x0\x1", 4);
-            ppsFrame->_buffer.append(_pps);
-            ppsFrame->_dts = frame->dts();
-            VideoTrack::inputFrame(ppsFrame);
-        }
-    }
 private:
+    bool _is_idr = false;
+    int _width = 0;
+    int _height = 0;
+    float _fps = 0;
     string _vps;
     string _sps;
     string _pps;
-    int _width = 0;
-    int _height = 0;	
-    float _fps = 0;
-    bool _last_frame_is_idr = false;
-};
-
-/**
-* h265类型sdp
-*/
-class H265Sdp : public Sdp {
-public:
-    /**
-     * 构造函数
-     * @param sps 265 sps,不带0x00000001头
-     * @param pps 265 pps,不带0x00000001头
-     * @param payload_type  rtp payload type 默认96
-     * @param bitrate 比特率
-     */
-    H265Sdp(const string &strVPS,
-            const string &strSPS,
-            const string &strPPS,
-            int bitrate = 4000,
-            int payload_type = 96) : Sdp(90000,payload_type) {
-        //视频通道
-        _printer << "m=video 0 RTP/AVP " << payload_type << "\r\n";
-        if (bitrate) {
-            _printer << "b=AS:" << bitrate << "\r\n";
-        }
-        _printer << "a=rtpmap:" << payload_type << " H265/" << 90000 << "\r\n";
-        _printer << "a=fmtp:" << payload_type << " ";
-        _printer << "sprop-vps=";
-        _printer << encodeBase64(strVPS) << "; ";
-        _printer << "sprop-sps=";
-        _printer << encodeBase64(strSPS) << "; ";
-        _printer << "sprop-pps=";
-        _printer << encodeBase64(strPPS) << "\r\n";
-        _printer << "a=control:trackID=" << (int)TrackVideo << "\r\n";
-    }
-
-    string getSdp() const override {
-        return _printer;
-    }
-
-    CodecId getCodecId() const override {
-        return CodecH265;
-    }
-private:
-    _StrPrinter _printer;
 };
 
 }//namespace mediakit
diff --git a/src/Extension/H265Rtmp.cpp b/src/Extension/H265Rtmp.cpp
index 38842fe7..b3ae4fa9 100644
--- a/src/Extension/H265Rtmp.cpp
+++ b/src/Extension/H265Rtmp.cpp
@@ -19,10 +19,8 @@ H265RtmpDecoder::H265RtmpDecoder() {
     _h265frame = obtainFrame();
 }
 
-H265Frame::Ptr  H265RtmpDecoder::obtainFrame() {
-    //从缓存池重新申请对象，防止覆盖已经写入环形缓存的对象
-    auto frame = obtainObj();
-    frame->_buffer.clear();
+H265Frame::Ptr H265RtmpDecoder::obtainFrame() {
+    auto frame = FrameImp::create<H265Frame>();
     frame->_prefix_size = 4;
     return frame;
 }
@@ -102,7 +100,7 @@ inline void H265RtmpDecoder::onGetH265(const char* pcData, size_t iLen, uint32_t
 #if 1
     _h265frame->_dts = dts;
     _h265frame->_pts = pts;
-    _h265frame->_buffer.assign("\x0\x0\x0\x1", 4);  //添加265头
+    _h265frame->_buffer.assign("\x00\x00\x00\x01", 4);  //添加265头
     _h265frame->_buffer.append(pcData, iLen);
 
     //写入环形缓存
diff --git a/src/Extension/H265Rtmp.h b/src/Extension/H265Rtmp.h
index 59ba842f..e4f97a08 100644
--- a/src/Extension/H265Rtmp.h
+++ b/src/Extension/H265Rtmp.h
@@ -22,7 +22,7 @@ namespace mediakit{
  * h265 Rtmp解码类
  * 将 h265 over rtmp 解复用出 h265-Frame
  */
-class H265RtmpDecoder : public RtmpCodec ,public ResourcePoolHelper<H265Frame> {
+class H265RtmpDecoder : public RtmpCodec {
 public:
     typedef std::shared_ptr<H265RtmpDecoder> Ptr;
 
diff --git a/src/Extension/H265Rtp.cpp b/src/Extension/H265Rtp.cpp
index 82e0142e..262ba347 100644
--- a/src/Extension/H265Rtp.cpp
+++ b/src/Extension/H265Rtp.cpp
@@ -29,10 +29,8 @@ H265RtpDecoder::H265RtpDecoder() {
     _frame = obtainFrame();
 }
 
-H265Frame::Ptr  H265RtpDecoder::obtainFrame() {
-    //从缓存池重新申请对象，防止覆盖已经写入环形缓存的对象
-    auto frame = ResourcePoolHelper<H265Frame>::obtainObj();
-    frame->_buffer.clear();
+H265Frame::Ptr H265RtpDecoder::obtainFrame() {
+    auto frame = FrameImp::create<H265Frame>();
     frame->_prefix_size = 4;
     return frame;
 }
diff --git a/src/Extension/H265Rtp.h b/src/Extension/H265Rtp.h
index dec81dfe..4bbacea0 100644
--- a/src/Extension/H265Rtp.h
+++ b/src/Extension/H265Rtp.h
@@ -25,7 +25,7 @@ namespace mediakit{
  * 将 h265 over rtsp-rtp 解复用出 h265-Frame
  * 《草案（H265-over-RTP）draft-ietf-payload-rtp-h265-07.pdf》
  */
-class H265RtpDecoder : public RtpCodec , public ResourcePoolHelper<H265Frame> {
+class H265RtpDecoder : public RtpCodec {
 public:
     typedef std::shared_ptr<H265RtpDecoder> Ptr;
 
diff --git a/src/Extension/L16.cpp b/src/Extension/L16.cpp
index 1ae5f265..e6c778ac 100644
--- a/src/Extension/L16.cpp
+++ b/src/Extension/L16.cpp
@@ -12,6 +12,43 @@
 
 namespace mediakit{
 
+/**
+ * L16类型SDP
+ */
+class L16Sdp : public Sdp {
+public:
+    /**
+     * L16采样位数固定为16位
+     * @param codecId CodecL16
+     * @param sample_rate 音频采样率
+     * @param payload_type rtp payload
+     * @param bitrate 比特率
+     */
+    L16Sdp(CodecId codecId,
+           int sample_rate,
+           int channels,
+           int bitrate = 128,
+           int payload_type = 98) : Sdp(sample_rate,payload_type), _codecId(codecId){
+        _printer << "m=audio 0 RTP/AVP " << payload_type << "\r\n";
+        if (bitrate) {
+            _printer << "b=AS:" << bitrate << "\r\n";
+        }
+        _printer << "a=rtpmap:" << payload_type << " L16/" << sample_rate  << "/" << channels << "\r\n";
+        _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
+    }
+
+    string getSdp() const override {
+        return _printer;
+    }
+
+    CodecId getCodecId() const override {
+        return _codecId;
+    }
+private:
+    _StrPrinter _printer;
+    CodecId _codecId;
+};
+
 Sdp::Ptr L16Track::getSdp() {
     WarnL << "Enter  L16Track::getSdp function";
     if(!ready()){
@@ -21,6 +58,10 @@ Sdp::Ptr L16Track::getSdp() {
     return std::make_shared<L16Sdp>(getCodecId(), getAudioSampleRate(), getAudioChannel(), getBitRate() / 1024);
 }
 
+Track::Ptr L16Track::clone() {
+    return std::make_shared<std::remove_reference<decltype(*this)>::type >(*this);
+}
+
 }//namespace mediakit
 
 
diff --git a/src/Extension/L16.h b/src/Extension/L16.h
index ed19f6dd..ca58ab8f 100644
--- a/src/Extension/L16.h
+++ b/src/Extension/L16.h
@@ -21,53 +21,12 @@ namespace mediakit{
  */
 class L16Track : public AudioTrackImp{
 public:
-    typedef std::shared_ptr<L16Track> Ptr;
+    using Ptr = std::shared_ptr<L16Track>;
     L16Track(int sample_rate, int channels) : AudioTrackImp(CodecL16,sample_rate,channels,16){}
 
 private:
-    //克隆该Track
-    Track::Ptr clone() override {
-        return std::make_shared<std::remove_reference<decltype(*this)>::type >(*this);
-    }
-    //生成sdp
-    Sdp::Ptr getSdp() override ;
-};
-
-/**
- * L16类型SDP
- */
-class L16Sdp : public Sdp {
-public:
-    /**
-     * L16采样位数固定为16位
-     * @param codecId CodecL16
-     * @param sample_rate 音频采样率
-     * @param payload_type rtp payload
-     * @param bitrate 比特率
-     */
-    L16Sdp(CodecId codecId,
-            int sample_rate,
-            int channels,
-            int bitrate = 128,
-            int payload_type = 98) : Sdp(sample_rate,payload_type), _codecId(codecId){
-        _printer << "m=audio 0 RTP/AVP " << payload_type << "\r\n";
-        if (bitrate) {
-            _printer << "b=AS:" << bitrate << "\r\n";
-        }
-        _printer << "a=rtpmap:" << payload_type << " L16/" << sample_rate  << "/" << channels << "\r\n";
-        _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
-    }
-
-    string getSdp() const override {
-        return _printer;
-    }
-
-    CodecId getCodecId() const override {
-        return _codecId;
-    }
-private:
-    _StrPrinter _printer;
-    CodecId _codecId;
+    Sdp::Ptr getSdp() override;
+    Track::Ptr clone() override;
 };
 
 }//namespace mediakit
diff --git a/src/Extension/Opus.cpp b/src/Extension/Opus.cpp
index 64777d28..275354cb 100644
--- a/src/Extension/Opus.cpp
+++ b/src/Extension/Opus.cpp
@@ -12,6 +12,40 @@
 
 namespace mediakit{
 
+/**
+ * Opus类型SDP
+ */
+class OpusSdp : public Sdp {
+public:
+    /**
+     * 构造opus sdp
+     * @param sample_rate 音频采样率
+     * @param payload_type rtp payload
+     * @param bitrate 比特率
+     */
+    OpusSdp(int sample_rate,
+            int channels,
+            int bitrate = 128,
+            int payload_type = 98) : Sdp(sample_rate,payload_type){
+        _printer << "m=audio 0 RTP/AVP " << payload_type << "\r\n";
+        if (bitrate) {
+            _printer << "b=AS:" << bitrate << "\r\n";
+        }
+        _printer << "a=rtpmap:" << payload_type << " opus/" << sample_rate  << "/" << channels << "\r\n";
+        _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
+    }
+
+    string getSdp() const override {
+        return _printer;
+    }
+
+    CodecId getCodecId() const override {
+        return CodecOpus;
+    }
+private:
+    _StrPrinter _printer;
+};
+
 Sdp::Ptr OpusTrack::getSdp() {
     if(!ready()){
         WarnL << getCodecName() << " Track未准备好";
diff --git a/src/Extension/Opus.h b/src/Extension/Opus.h
index 382ee8c8..88b19a1a 100644
--- a/src/Extension/Opus.h
+++ b/src/Extension/Opus.h
@@ -33,39 +33,5 @@ private:
     Sdp::Ptr getSdp() override ;
 };
 
-/**
- * Opus类型SDP
- */
-class OpusSdp : public Sdp {
-public:
-    /**
-     * 构造opus sdp
-     * @param sample_rate 音频采样率
-     * @param payload_type rtp payload
-     * @param bitrate 比特率
-     */
-    OpusSdp(int sample_rate,
-            int channels,
-            int bitrate = 128,
-            int payload_type = 98) : Sdp(sample_rate,payload_type){
-        _printer << "m=audio 0 RTP/AVP " << payload_type << "\r\n";
-        if (bitrate) {
-            _printer << "b=AS:" << bitrate << "\r\n";
-        }
-        _printer << "a=rtpmap:" << payload_type << " opus/" << sample_rate  << "/" << channels << "\r\n";
-        _printer << "a=control:trackID=" << (int)TrackAudio << "\r\n";
-    }
-
-    string getSdp() const override {
-        return _printer;
-    }
-
-    CodecId getCodecId() const override {
-        return CodecOpus;
-    }
-private:
-    _StrPrinter _printer;
-};
-
 }//namespace mediakit
 #endif //ZLMEDIAKIT_OPUS_H
diff --git a/src/Record/MP4Demuxer.cpp b/src/Record/MP4Demuxer.cpp
index 1b38dac2..f44265f4 100644
--- a/src/Record/MP4Demuxer.cpp
+++ b/src/Record/MP4Demuxer.cpp
@@ -221,7 +221,7 @@ Frame::Ptr MP4Demuxer::makeFrame(uint32_t track_id, const Buffer::Ptr &buf, int6
                 if (frame_len + offset + 4 > bytes) {
                     return nullptr;
                 }
-                memcpy(data + offset, "\x0\x0\x0\x1", 4);
+                memcpy(data + offset, "\x00\x00\x00\x01", 4);
                 offset += (frame_len + 4);
             }
             if (codec == CodecH264) {
diff --git a/src/Rtmp/Rtmp.cpp b/src/Rtmp/Rtmp.cpp
index 4be4f77d..272e1c91 100644
--- a/src/Rtmp/Rtmp.cpp
+++ b/src/Rtmp/Rtmp.cpp
@@ -142,9 +142,7 @@ RtmpPacket::Ptr RtmpPacket::create(){
     ret->clear();
     return ret;
 #else
-    auto ret = Ptr(new RtmpPacket);
-    ret->clear();
-    return ret;
+    return Ptr(new RtmpPacket);
 #endif
 }